upgrade database

If the company wants to upgrade database in  10.2.x.0   to this  10.2.x.3.
and 10.2.x.0 is in production...
I know we user dbua..
How we upgrade..we try to install 10.2.x.3 over it or what...
nobleitAsked:
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slightwv (䄆 Netminder) Commented:
10.2.X.? Should be a patchset not an upgrade.  The readme for the patch will have detailed installation instructions.
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mrjoltcolaCommented:
Also, if you've never applied an Oracle patch before, make sure you practice in development / test environment first!
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slightwv (䄆 Netminder) Commented:
Not only practice but get in the habit of writing down/documenting your own step-by-step guide.

This way, when it comes time: you will greatly reduce surprises.
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